2011
DOI: 10.1016/j.optlaseng.2011.01.007
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Laser remelting of Al–1.5 wt%Fe alloy surfaces: Numerical and experimental analyses

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Cited by 36 publications
(26 citation statements)
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“…This structure probably continues to grow in spite of the sudden increase in the solidification velocity over the surface, i.e., the equilibrium Fe aluminide is not displaced with increasing solidification velocity by a metastable aluminide. 10,14,15 Previous researchers reported that the Si content is lower than 0.15 % of mass fractions of Si, which is the limiting Si content permitting to avoid AlFeSi to be the dominant intermetallic phase. 16 The material used in the experiment (AA8079) has the Si ratio of 0.12 and no AlFeSi intermetallic was observed in the structure.…”
Section: Microstructure Propertiesmentioning
confidence: 99%
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“…This structure probably continues to grow in spite of the sudden increase in the solidification velocity over the surface, i.e., the equilibrium Fe aluminide is not displaced with increasing solidification velocity by a metastable aluminide. 10,14,15 Previous researchers reported that the Si content is lower than 0.15 % of mass fractions of Si, which is the limiting Si content permitting to avoid AlFeSi to be the dominant intermetallic phase. 16 The material used in the experiment (AA8079) has the Si ratio of 0.12 and no AlFeSi intermetallic was observed in the structure.…”
Section: Microstructure Propertiesmentioning
confidence: 99%
“…Some of the researchers focused the metallurgical behavior of Al-Fe powders and alloys. [10][11][12][13] On the other hand some of the researchers focused the rapid cooling rate and severe deformation effects on the different Al-Fe alloys. [14][15][16] M. Aghaie-Khafri and R. Mahmudi 17 have investigated the plastic instability and necking behavior of AA8079 aluminum alloy sheet in temper-annealed and fully annealed conditions.…”
Section: Introductionmentioning
confidence: 99%
“…A Tabela 3 apresenta os quatros picos de difração mais intensos de cada fase, de acordo com a literatura indicada, utilizados na identificação das fases presentes na liga Al-1,5%Fe em peso tratadas por RSL. Na Tabela 5, estão dispostos os dados das principais fases da liga em estudo identificadas pela técnica de DRXIR, e também as fases não identificadas pelas referidas técnicas, mas previstas no diagrama de fases do sistema Al-Fe conforme a literatura já citada [16,22,24,25,26,27] …”
Section: Difração De Raios Xunclassified
“…Na parte inferior das micrografias realizadas por MO (Figura 2(a)) e por MEV (Figura 2(b)), observase uma microestrutura com morfologia basicamente granular (celular). A região do substrato foi ampliada, conforme Figura 2(e), na qual se observam partículas intermetálicas em forma de agulhas (cor branca) que estão alocadas ao redor de grãos (células), segundo relatam os autores PARIONA et al [2,3]; GOULART et al [16]; BERTELLI et al [22] e SILVA; GARCIA e SPINELLI [29] essas partículas brancas representam o intermetálico Al 3 Fe, a qual é mais comum na solidificação em equilíbrio, conforme prevista no diagrama de fases do sistema binário Al-Fe [24,25,26]. A Tabela 6 apresenta a análise de EDS realizada na superfície e camada tratadas por RSL, bem como da região de substrato.…”
Section: Caracterização Microestrutural Da Liga Al-15%feunclassified
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